:root { color-scheme: light dark; --fg: #1b1f23; --bg: #fbfbf9; --muted: #5c6670; --rule: #d9dde2; }
@media (prefers-color-scheme: dark) { :root { --fg: #e8eaed; --bg: #14171a; --muted: #9aa4ae; --rule: #2b3238; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; padding: 0 16px; }
main { max-width: 40rem; margin: 0 auto; padding: 48px 0 64px; }
h1 { font-size: 1.7rem; margin: 0 0 .75rem; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 .25rem; }
p, li { color: var(--fg); }
.muted { color: var(--muted); }
nav { display: flex; gap: 1rem; flex-wrap: wrap; border-top: 1px solid var(--rule); padding-top: 1rem; margin-top: 2.5rem; font-size: .95rem; }
a { color: inherit; }